April 2017 | Volume 214, No. 4

Cover image

ON THE COVER
Diny et al. report that eosinophils mediate progression of myocarditis to inflammatory dilated cardiomyopathy through interleukin-4 in a mouse model of autoimmune myocarditis. The electron micrograph is taken from the heart of a hypereosinophilic mouse with acute myocarditis and shows eosinophils (orange) and other immune cells (yellow) in blood vessels (green) and infiltrating between cardiomyocytes (blue). See page 943